Executive team

Unity Health Toronto Executive Organization Structure

Unity Health Toronto executive structure


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Executive team biographies


Dr. Tim RutledgeDr. Tim Rutledge, President and CEO

Dr. Tim Rutledge joined the network bringing together Providence Healthcare, St. Joseph’s Health Centre and St. Michael’s Hospital as President and CEO in March 2018. He was previously President and CEO of North York General Hospital from 2010 to 2018.

With a background in Emergency Medicine, Tim has held a number of leadership positions, including Medical Director of the Emergency Services Program at North York General from 1996 to 2007, and Chair of the Medical Advisory Committee from 2002 to 2004, providing leadership during the SARS epidemic in 2003. Tim developed a special interest in medical education early in his career. He chaired the committee that developed the University of Toronto’s first undergraduate course in Emergency Medicine and was the Director of that course from 1995 to 2001. He has been recognized for his work in education with a number of awards including University of Toronto’s esteemed W. T. Aikins Award in 1997.

Tim is sought out as a writer and speaker on education, leadership capacity building and physician engagement. He is an Associate Professor in the Department of Family and Community Medicine at University of Toronto and a founding member of the Joint Centres for Transformative Health Care, a partnership of six large community hospitals with a goal of sharing innovations focused on improving quality and value in health care.


Dr. Graham BerlyneDr. Graham Berlyne, Chair of the Medical Advisory Committee

Dr. Graham Berlyne joined St. Joseph’s Health Centre in 2006, and has been the Chief of Medicine and the Medicine Program Director for the past eight years.

Dr. Berlyne received his medical degree in Manchester, England, and completed his postgraduate training in internal medicine and respiratory medicine in Oxford and London. His training included two years as a clinical research fellow at the Firestone Institute of McMaster University in Hamilton, focusing on the non-invasive assessment of airway inflammation.

Graham is an Adjunct Lecturer at the University of Toronto, and previously held a similar position at the University of London. He was also an Associate Professor at McMaster University. Dr. Berlyne also completed the Advanced Health Leadership Program at the Rotman School of Business, and is a graduate of the Mission Leadership Program of the Catholic Health Sponsors of Ontario.


Jennifer Bowman

Jennifer Bowman, VP of People & Transformation

Jennifer joined Unity Health Toronto in January 2019 following 11 years as a VP at North York General Hospital, most recently as VP of People, Strategy and Clinical Support. Prior to joining the senior leadership team at North York, Jennifer enjoyed a five-year career at MDS Inc., a Canadian life and health sciences company where she was VP of External Affairs. Before joining MDS, she spent five years at GlaxoWellcome Canada as a Senior Manager of Government Relations and External Affairs.

Her prior public sector experience includes 10 years with the Government of Ontario in senior positions at the Ministry of Health and Long-Term Care where she was Legislative Assistant to the Minister; Senior Manager of Health Strategies; and Manager of the Women’s Health Bureau.

Jennifer holds an Honours BA in Political Science from McMaster University and an MA in Political Science in the McMaster-Guelph University Collaborative Public Policy and Administration Program. She has also completed the Advanced Health Leadership Program offered by the University of Toronto’s Rotman School of Management Executive Programs.


Beverly Bulmer

Beverly Bulmer, VP of Education

Bev Bulmer became St. Michael’s VP of Education in 2016 and the first person with a health discipline background to hold the role at a Toronto academic institution. Bev is a Physical Therapist with a B.Sc. in Physical Therapy and a M.Sc. in Community Health, both from the University of Toronto. Bev started her clinical career at Sunnybrook Health Sciences Centre, moving to St. Michael’s Hospital Mobility program in 2006. She held the role of Director of Health Disciplines Practice and Education prior to this role.  In the director role, she gained a strong understanding of the practice and education issues that affect health-care providers.

She is a lecturer in the Department of Physical Therapy at the University of Toronto. Bev is committed to a collaborative and scholarly approach to education for all learners that supports excellent patient care and outcomes.


Sonya Canzian

Sonya Canzian, executive VP of Clinical Programs, and chief nursing and health professions officer

A Registered Nurse, Sonya Canzian joined St. Michael’s Hospital in 1989. Since then, she has held progressively senior positions in critical care, education and administration. Sonya is a proven leader and was most recently Program Director of the Trauma/Neurosurgery and Mobility programs.

Sonya is responsible for operational management of the Trauma/Neurosurgery, Mobility, Heart and Vascular, Critical Care, Specialized Complex Care and Cancer Services programs, and is also accountable for Nursing and Health Disciplines professional practice, education and research.

Sonya is cross-appointed to the University of Toronto, is a Lecturer in the Critical Care Program at George Brown College, Canadian Nurses Association mentor for neuroscience nursing certification, National Director and Instructor for the Advanced Trauma Care for Nurses course for the Society of Trauma Nurses. Sonya holds a master’s in Health Science from Charles Sturt University in Australia.


Dale ClementDale Clement, VP of Clinical Programs

Dale Clement joined Unity Health Toronto in 2019 as VP of Clinical Programs at St. Joseph’s. Dale has more than 20 years of extensive hands-on clinical, strategic and operational leadership experience in hospitals and the community.

Dale’s past roles include senior VP of Redevelopment and Transition at Wellington Health Care Alliance, and CEO of the Waterloo Wellington Community Care Access Centre. She was also the Chief Operating Officer of Halton Healthcare Services – Oakville Trafalgar Memorial Hospital site. And at the Mississauga Halton Local Health Integration Network, Dale was the Emergency Department/Alternate Level of Care strategy leader, as well as the Director of Client Services involving regional and national health-care delivery.

Dale is a Registered nurse with a master’s in Nursing as well as an MBA, both from the Athabasca University.


Dr. Irfan DhallaDr. Irfan Dhalla, VP, Care Experience and Equity, and Director, Care Experience Institute

Dr. Irfan Dhalla has a dual role at Unity Health: helping drive our network’s quality agenda with a special focus on engaging our physicians; and leading our Care Experience Institute, shaping its future to be a first-in-Canada centre of excellence.

Irfan began his career at St. Michael’s Hospital in the Division of General Internal Medicine, eventually becoming the hospital’s inaugural Medical Director, Quality and Research. From 2013 to 2019, Irfan was a VP at Health Quality Ontario. In 2020, he returned to Unity Health to assume these two newly created positions.

Irfan continues to practice general internal medicine at St. Michael’s Hospital, where he is an award-winning teacher. He is also an Associate Professor in the Department of Medicine and the Institute for Health Policy and Management at the University of Toronto. He has been recognized with national awards, from the Canadian Institutes of Health Research, the Canadian Society of Internal Medicine, and the Canadian Agency for Drugs and Technologies in Health.


Sabrina Divell, Executive Director and Chief Communications Officer of Corporate Communications and Public Affairs

As the Executive Director and Chief Communications Officer, Sabrina Divell works to enhance Unity Health Toronto’s reputation and awareness within the provincial health-care system and across the diverse communities we serve.

Sabrina began her career as a journalist, covering health and business for a variety of Torstar publications. She later joined the communications team at St. Joseph’s Health Centre where she held several progressively senior roles over the span of 12 years, most recently as Corporate Director of Corporate Communications and Public Affairs. Since Unity Health’s integration in 2017, she has been working to combine communications efforts across the sites as well as leading the design and implementation of our network’s overall brand communications strategy. She is a graduate of the Humber College Journalism program as well as the Cornell University Change Leadership and Executive Leadership Certificate Program and the Strategic Marketing Skills for Managers at York University’s Executive Education Centre Schulich School of Business.

Throughout her career, Sabrina has been the recipient of several honours and awards, including the Gold Quill Award of Excellence from the International Association of Business Communicators, APEX Grand Award and AVA Digital Gold Award.


Maria DyckMaria Dyck, President and CEO of St. Joseph’s Health Centre Foundation

Maria joined St. Joseph’s Health Centre Foundation in 2010, following senior positions at St. Michael’s Hospital Foundation, the University of Toronto, Cystic Fibrosis Canada and the Office of the Premier of Ontario. Under her leadership, the foundation has become one of the top community hospital foundations in Canada.

Maria has worked in Canada, the United States and Australia and has more than 25 years of experience in fundraising, consulting, alumni and government relations, marketing and communications.

Maria has an honours BA in History from Western University and an MBA from the Schulich School of Business at York University. She is an active volunteer and sits on advisory committees for Humber and Seneca Colleges. She is also the co-founder of D3: Debate, Debunk, Delight, Canada’s leading conference for fundraising leaders.


Michael KeenMichael Keen, VP, Facilities and Planning

Mike Keen provides corporate leadership in redevelopment, facilities management and corporate services, and the development and implementation of strategic capital plans. In this capacity, he currently leads over $750 million in redevelopment as well as a significant renewal of inpatient, outpatient and surgical programs.

As a member of the Canadian Standards Association (CSA) Standards Development Council, Mike leads national health standards development  in the role of Chair of the Strategic Steering Committee for Health & Well-Being.  He is also a faculty member in the education of Healthcare Facility Planning & Design and has overseen research projects to inform evidence-based decision-making, in essence supporting his commitment to system learning.

Mike Keen began his career with St. Michael’s in 1993, eventually assuming his current role with Unity Health in 2018. He is a recognized leader in health-care infrastructure and development of the built environment of care. Internationally, he was past chair of the Healthcare Technical Committee at the American Society of Heating, Refrigerating and Air-Conditioning Engineers and the inaugural Chair of the Infectious Diseases Committee. 


Lili LitwinLili Litwin, President of St. Michael’s Hospital Foundation

A senior fundraising executive, Lili joined the St. Michael’s Hospital Foundation in 2017. She has experience in designing and building teams, campaigns, and principal and major gift programs for national and international organizations.

Lili has extensive expertise in engaging stakeholders to create brand equity and raise support. Implementing traditional advancement strategies and designing award-winning social awareness campaigns has resulted in exponential growth and success during her tenure.

Lili holds a Certified Fundraising Executive (CFRE) designation. She graduated with a BA from Glendon College in the bilingual stream, as well as a B.Ed. from York University. Lili has completed executive leadership programs at the Rotman School including, MBA Essentials for Managers, Integrative Thinking and Value Investing.

Dr. Muhammad MamdaniDr. Muhammad Mamdani, VP, Data Science and Advanced Analytics

Dr. Muhammad Mamdani is working to expand our advanced analytical capabilities, including the application of artificial intelligence, using our own hospital data as well as other data sources to improve quality and operational excellence. In his previous role as the inaugural Director of the Li Ka Shing Centre for Healthcare Analytics Research and Training (CHART), Muhammad brought together hospital staff and physicians with data science researchers to solve real world problems by applying advanced analytics to health-care data. He now works to transform care by applying data science and advanced analytics on a much larger scale, across Unity Health.

Prior to joining the Li Ka Shing Knowledge Institute and St. Michael’s Hospital in 2006, Muhammad was a Director of Outcomes Research at Pfizer Global Pharmaceuticals in New York. Muhammad’s research interests include pharmacoepidemiology, drug policy, and the application of advanced analytics to clinical practice. He has published approximately 500 research studies in peer-reviewed medical journals. Muhammad is a professor at the University of Toronto, and in 2010 was named one of Canada’s top 40 under 40.


Dean Martin

Dean Martin, Executive VP of Corporate Services and chief financial officer

Dean Martin joined the network in October 2018 from Trillium Health Partners where he had been the senior VP of Corporate Services, CFO and Queensway site lead since January 2014. His career in health-care financial leadership has also included positions at North York General Hospital, CAMH and the Ministry of Health and Long-Term Care.

Dean holds a bachelor’s of Business Administration from Brock University, a master’s in Health Administration from the University of Ottawa, and is a Certified Healthcare Executive and a Certified Management Accountant.


Mellisa Morey-HollisMelissa Morey-Hollis, VP of Clinical Programs

Melissa Morey-Hollis joined St. Joseph’s in 2014 as the Clinical Program Director for the Medicine and Seniors Care Program. In 2019, she became the VP of Clinical Programs at Providence. In her Clinical Program Director role, Melissa has always put a great focus on fostering partnerships with the community, post-acute partners in the system and within hospital walls.

Previously, Melissa was the Director of Interprofessional Practice, Research and Infection Control at William Osler Health Systems and was an improvement advisor with the Osler-led Ministry of Health and Long-Term Care Health Performance Initiative Collaborative that focused on reducing Alternate Level of Care days and improving transitions to care destinations. 

Melissa began her career as an Occupational Therapist and has a bachelor’s in Kinesiology and a master’s in Occupational Therapy from Western University. She also has a master’s in Health Studies from Athabasca University.


Dr. Thomas Parker

Dr. Thomas Parker, executive VP of Clinical Programs and Chief Medical Officer

Dr. Parker oversees the Unity Health Toronto clinical programs of Primary Care and Community Health, Kidney and Metabolism, Medical Imaging, and Laboratory Medicine, as well as the Emergency and Medicine program at the St. Michael’s site.

Dr. Parker was recruited to St. Michael’s Hospital in 2003 to head up the Division of Cardiology and as the inaugural recipient of the Brazilian Ball Chair in Cardiology Research – positions he held until 2010. Since 2010, he has also served as the Medical Lead of the hospital’s Elder Care Strategy, Co-Lead of the Urban Community Patient Priority, Chair of the Medical Advisory Committee, and was a member of the Joint Board Steering Committee during the integration of Providence Healthcare, St. Joseph’s Health Centre and St. Michael’s Hospital.  Prior to being appointed VP and CMO, Dr. Parker was Physician-in-Chief and Squires-Chalmers professor in the Department of Medicine at St. Michael’s Hospital.  He is a Professor of Medicine at the University of Toronto.

He received his medical degree from the University of Western Ontario and undertook postgraduate clinical training in Internal Medicine and Cardiology at the University of Toronto followed by a Research Fellowship in Molecular Cardiology at Baylor College of Medicine in Texas.


Dr. Kunuk Rhee, VP, Medical Affairs, St. Joseph’s

Dr. Kunuk Rhee’s key accountabilities at Unity Health Toronto include the oversight of the Medical Affairs Department, clinical quality improvement and providing medical leadership to the nearly 500 medical staff of St. Joseph’s.

Dr. Rhee joined Unity Health Toronto in early February 2020 from Cambridge Memorial Hospital where he was the Chief of Staff and VP since 2013. He also concurrently held a VP of Clinical Quality role at the Waterloo-Wellington LHIN since 2017. During this time, he provided educational leadership in an Adjunct Clinical Assistant Professor role at McMaster University. Prior to this, Dr. Rhee was the regional clinical quality lead at Health Quality Ontario and chaired the Regional Quality Table. He has nearly 20 years of extensive medical leadership experience.

Kunuk is a family physician-hospitalist and has a clinical and teaching role at St. Joseph’s. Dr. Rhee has also served as a Section Chair and Past‑Chair of the Ontario Medical Association and has received the Canadian Society of Hospital Medicine’s Excellence in Leadership Award.

Dr. Ori Rotstein

Dr. Ori D. Rotstein, VP of Research and Innovation

A surgeon, scientist and administrator, Dr. Ori D. Rotstein joined St. Michael’s in 2004 as Surgeon-in-Chief. In 2005, he became the Director of the Keenan Research Centre for Biomedical Science. Since May 1, 2019, he has been the VP of Research and Innovation for Unity Health Toronto.

Dr. Rotstein has made numerous and significant contributions to the organization and health care sector. He has almost 350 publications; given more than 300 presentations worldwide; been awarded multiple grants from various funding agencies, including the CIHR, CFI and NIH; and is the recipient of many honours and awards, including the inaugural Keenan Chair in Research Leadership.

He received his MD and a M.Sc. from the University of Toronto. He completed postgraduate specialty training in General Surgery at U of T, followed by a research fellowship at the University of Minnesota. An expert in the management of intra-abdominal infection and inflammation, Dr. Rotstein’s research interests are in understanding how traumatic injury leads to alterations in the immune response of patients.


Anne Trafford

Anne Trafford, VP of Quality and chief information officer

Anne Trafford joined St. Michael’s Hospital in 2005 with a vision and passion to drive transformation through the use of technology. Anne has held several progressive leadership roles in her career at St. Michael’s, including three years as a cross-appointed CIO at Bridgepoint Health where she was part of the leadership team that designed and delivered the new technology-enabled facility.

In January 2012, Anne’s commitment to integrated health care was further advanced when she assumed a new cross-site role, as CIO for St. Joseph’s Health Centre. Also in 2012, Anne’s portfolio at St. Michael’s was expanded to encompass the Quality and Performance programs. This diverse portfolio is designed to drive improvement in all domains of quality and patient experience and includes quality improvement, risk management, emergency preparedness, decision support, analytics, health information management and of course, Information Technology. Anne is a Registered Nurse with a B.Sc. from the University of Toronto.


Dr. Ashley Verduyn, Chief and Director, Medical Affairs, Providence

Dr. Ashley Verduyn is the Chief and Director of Medical Affairs at Providence Healthcare. On the clinical side, she currently works as a hospitalist specializing in geriatric and medical rehabilitation.

Dr. Verduyn began her career at Providence as a long term care physician working in the Cardinal Ambrozic Houses of Providence in 2008. Later in 2017, she became the Medical Director of the long term care home.

Having completed her undergraduate medical training at McMaster University and her residency training in family medicine at the University of Toronto, Dr. Verduyn is now also a lecturer within the Department of Community and Family Medicine at the University of Toronto. In 2018, she was the recipient of Providence’s Living our Values Award for Sanctity of Life.


Dr. Jeff Zaltzman

Dr. Jeff Zaltzman, Vice-Chair of the Medical Advisory Committee

Dr. Jeff Zaltzman joined the Division of Nephrology at St. Michael’s Hospital in 1993, where he played an active role in the resurgence of the Renal Transplant Program. He was the program’s Director from 2000 to 2016, and is now the Medical Director of the Diabetes Comprehensive Care Program and the chief of the Division of Nephrology.

Dr. Zaltzman developed a special interest in medical education, serving at St. Michael’s as Director of the Internal Medicine Residency Program and educational director of Nephrology from 1994 to 2015. He also chaired the Research Ethics Board (REB) from 2000 to 2002.

Jeff completed both his undergraduate studies and medical degree at McGill University. He did a residency in Internal Medicine at the University of Manitoba, and he completed his nephrology and transplant training and a master’s in Clinical Epidemiology at the University of Toronto. His research interests are in the areas of chronic allograft nephropathy, cardiovascular issues, renal function in transplantation and transplant ethics.

Dr. Zaltzman is a professor of Medicine at the University of Toronto and was the Chief Medical Officer of Trillium Gift of Life Network Ontario. He chaired the kidney working group at the Canadian Society of Transplant, and has been involved with the Kidney Foundation of Canada at both the provincial and national levels.